Depends on what you are looking for in HP numbers. S300 series is a great upgrade

I'm only lookin for a small upgrade that won't take too much modifications. And kinda inexpensive.

go with an hx40, i had one for 200k miles and i loved it but i blew up yesterday, old age with no wastegate, i upgraded to a custom hx40w should be here on the 24th. they light fast and its a good cheap step up from a 35. you can pick them up for 300ish just make sure its a holset and not chinese crap.

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just make sure you dont build up 30+ psi and dump the throttle, it really bangs the shaft around and i think that might be why mine is in pieces....

I think I'm going to go with this crazy ceramic ball bearing turbo from comp turbo.

What size and how much did they charge you for it? Keep us posted

if you rebuild it be sure to get a HX40 compressor wheel and compressor housing ;)

Hey 19 cummins95 who did you go through getting that new hx40?? Who is the manufacturer? Thanks!!!!!

its from a speed shop in Indiana I got it off eBay but it said "1 item available" and the ad is no longer up. Its basically a holset core with a bunch of upgrades, 8 fin compressor wheel, I think stock 40s have 6 or 7 fins. Adjustable wastegate set for 30 and ceramic bearings. Its advertised as a quick spooling drag turbo and the add mentions using it for twins, its not here yet so I dont know more what the add and pics said about it, but I think it'll be a good little charger.. So as far as manufacturer I couldn't tell you, it looks like some sort of custom piece. I'll let you know more when it shows up.

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Oh and I THINK its an external wastegate not sure on that though..

so what does it mean t3/t4 turbo .... and what comes stock on my 95 12v ... its a 215 hp isb.... stock turbo is a little bit loose ... looking now while it still runs... but I dont have any issues rebuilding stuff if some one can point me to where to get parts for this unit... thanks.... :tu:

T3and 4 are the different size flanges on the turbo mounting to the manifold, 95 12v should be a t3. Rebuild kits for hx35s which is your stock turbo are cheap, like 75 - 100 but a new hx40 which is a good step up is about 300. You're smart to replace the turbo BEFORE it lets go... I'm still in the middle of my install. I was lucky to have no metal chips in my oil. Good luck :tu: